With girls, it’s important to talk about menstruation before they actually get their period, as the sight of blood and possible discomfort may be confusing or scary for them. Talk to them about how to use sanitary towels and tampons, although some suggest that tampons should not be used in the early stages of puberty because it might tear the hymen. However, this is very unlikely as the gap in the hymen will stretch to accommodate the tampon. Explain that the uterine wall becomes lined with blood in preparation for a fertilized egg. If the egg isn’t fertilized, the lining is shed and she will get her period. A girl can get pregnant before she starts having periods. Egg maturation normally occurs right before the first menstrual period, this is not always the case. Fertilization can still occur and this will increase the risk of complications to the mother and the baby.